Review the Prerequisites and Considerations

Review the following prerequisites and considerations before you create an Exchange Online Backup Plan.

Creating an Exchange Online Backup Plan:

Prerequisites:

For Backup account:

• Use a backup service account with Global admin permissions.
• Add impersonation permission for backup user to the Exchange Online backup account to connect the Exchange Online organization, perform backups and restore.

  Note: If you do not add the backup account to the Discovery Management role group and do not assign the Application Impersonation permission, backup fails.

• Associate the Backup user account with one exchange online mailbox.

For Backup proxy:

• Log in to the Console.
• Install Arcserve UDP Agent on the proxy machine where you want to run backup/restore.

Considerations:

• While backing up a large set of users, you can use exchange groups for better backup and optimisation.
• Default setting for exchange online backup uses 4 backup threads (one thread per user) at a time. You can also modify the threads in configuration file of Engine\BIN\Office365\Arcserve.Office365.Exchange.config as follows:
• Copy

  <!--#region for multi thread-->
  <!--MultiThreadEnable default value:0. if enable, set 1.-->
  <add key="MultiThreadEnable" value ="1"/>
  <!--set how many thread will be used to backup mailbox. default value is 4-->
  <add key="MaxDegreeOfParallelismForMailbox" value="4"/>
  <!--#endregion-->
                          
                      

• We recommend to set the value from 1-5. The maximum possible value is 10. But, we do not recommend setting the value from 6-10.

Note: UDP 8.0 supports the following:

• User mailbox
• Shared mailbox
• Mail-enabled Public folders
• Room mailboxes
• Equipment mailboxes
• Group mailboxes

Note: For more information about the best practices for Exchange Online, see Exchange Online Related.

Creating an Exchange Online Backup Plan Using Basic Authentication (BA):

Review the following prerequisites:

• Install PowerShell Version 5.1 or higher (part of Windows management framework (WMF)) on the proxy server (64-bit computer).

• Install the following PowerShell modules on the proxy server using the PowerShell window:

  • To install Azure module, run the following command:
  • Install-Module -Name AzureAD -Force
  • To install ExchangeOnlineManagement module, run the following command:
  • Install-Module -Name ExchangeOnlineManagement -Force

  Note: When you install PowerShell modules using the above commands, a newer version of modules may get installed based on the GA version of the component available in the Microsoft repository.

Creating an Exchange Online Backup Plan Using Modern Authentication (MA):

Review the Prerequisites before you create a plan using Modern Authentication.